OS Command Injection Infoblox Network Automation

[nate@xxxxxxxxxxxxxxxxx]

Product: Network Automation, licensed as:
?         NetMRI
?         Switch Port Manager
?         Automation Change Manager
?         Security Device Controller

Vendor: Infoblox
Vulnerable Version(s): 6.4.X.X-6.8.4.X
Tested Version: 6.8.2.11

Vendor Notification: May 12th, 2014 
Vendor Patch Availability to Customers: May 16th, 2014
Public Disclosure: July 9th, 2014 

Vulnerability Type: OS Command Injection [CWE-78]
CVE Reference: CVE-2014-3418
Risk Level: High 
CVSSv2 Base Score: 10 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Solution Status: Solution Available

Discovered and Provided: Nate Kettlewell, Depth Security ( 
https://www.depthsecurity.com/ )

------------------------------------------------------------------------
-----------------------

Advisory Details:

Depth Security discovered a vulnerability in the Infoblox Network Automation 
management web interface. This attack does not require authentication of any 
kind.

1) OS Command Injection in Infoblox Network Automation Products: CVE-2014-3418

The vulnerability exists due to insufficient sanitization of user-supplied data 
in in skipjackUsername POST parameter. A remote attacker can inject operating 
system commands as the root user, and completely compromise the operating 
system.

The following is the relevant portion of the multipart/form-data POST request 
to netmri/config/userAdmin/login.tdf

Content-Disposition: form-data; name="skipjackUsername"

admin`ping -n 20 127.0.0.1`

------------------------------------------------------------------------
-----------------------

Solution:

Infoblox immediately released a hotfix to remediate this vulnerability on 
existing installations (v6.X-NETMRI-20710.gpg). 
The flaw was corrected in the 6.8.5 release (created expressly for dealing with 
this issue), and that release has been put into manufacturing for new 
appliances.

------------------------------------------------------------------------
-----------------------

Proof of Concept:

In addition to manual exploitation via the above mentioned vector, proof of 
concept is provided in the form of a module for the metasploit framework.

https://github.com/depthsecurity/NetMRI-2014-3418
------------------------------------------------------------------------
-----------------------

References:

[1] Depth Security Advisory - 
http://blog.depthsecurity.com/2014/07/os-command-injection-in-infoblox-netmri.html
  - OS Command Injection in NetMRI.
[2] NetMRI - http://www.infoblox.com/products/network-automation/netmri - 
NetMRI is an Enterprise Network Management Appliance.
[3] Common Weakness Enumeration (CWE) - http://cwe.mitre.org/ - targeted to 
developers and security practitioners, CWE is a formal list of software 
weakness types.
[4] NetMRI Metasploit Module - https://github.com/depthsecurity/NetMRI-2014-3418